Teairra Mari‘s revenge porn lawsuit against her ex-boyfriend is going nowhere fast … according to the ex, who maintains SHE leaked their sex tape, and therefore has NO case.

Akbar Abdul-Ahad tells us, although Teairra’s going forward with the lawsuit, she hasn’t been shy about trying to cozy up to him for some, uh … well, you have to see his description. Point is, he now firmly believes what Teairra’s ‘L&HH’ costar Milan Christopher claims about her posting the explicit footage herself.

You’ll recall … Milan said Teairra was acting strange the day the sex tape went public, accusing Akbar of leaking it before it was even posted.

Akbar believes the new info destroys Teairra’s lawsuit against him, and seems to think it’s just a matter of time before her attorney Lisa Bloom jumps ship.